The optics department contains rear dual camera setup on the rear which consists of one 16 MP RGB sensor and the other a 20 MP monochrome sensor with a f / 1.8 aperture, PDAF, dual LED flash but no OIS (Optical Image Stabilization). (dealntech.com)
As well as the larger display size, the Plus model is the first Nokia phone to boast a 18:9 aspect ratio and Full HD + resolution, a faster Snapdragon 660 processing package, and a more powerful rear dual camera setup. (androidauthority.com)
The phone is rumored to feature four cameras, it comes with the 20MP + 2MP dual cameras on the front and the 16MP + 20MP rear dual camera setup. (myfixguide.com)